Modular wall



FIG. 1 is an exploded perspective view of a modular wall showing the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a perspective view thereof;

FIG. 4 is a side view thereof; and,

FIG. 5 is a top view thereof.

The broken lines in the drawings depict portions of the modular wall that form no part of the claimed design. 

CLAIM The ornamental design for a modular wall, as shown and described. 